Question

PRG255 3.2 (2 marks) Write a C program that uses the bitwise shift operators to shut the The program will ask the user to enter an unsigned also how many bits for the shift operation. Display the entered operation in both decimal and binary formats, vise shirt operators to shift the bits to the right >> or the left << user to enter an unsigned integer number, choose right shift or left shift, and orauon. Display the entered number and the result after shift Cult - num <<n; /* This shifts n bits to the left, and then most significant bits are lost. result = num >> m; /* This shifts m bits to the right, and the m least significant bits are lost. The following statements are the same. num = num >> 3; num >>= 3; Show the operation in binary by calling the following function as defined in 3.1, void to binary(unsigned int n); The function converts decimal to binary and outputs the binary characters. Two example runs of the program are as follows, Input an integer number in the range from 0 to 65535 > 565 Input the number of bits to shift > 2 Shift to the left (enter 0) or right (enter 1) 0

Answer 1

Code:

#include <stdio.h>
void to_binary(unsigned int num);
int main(void) {
unsigned int num, result;
int c, flag;
printf("Enter a number in range 0 to 65535:");
scanf("%d",&num);
printf("Input number of bits to shift:");
scanf("%d",&c);
printf("Shift to left (enter 0) or right (enter 1):");
scanf("%d",&flag);
if(flag==0) //shifts c bits to left
result=num<<c;
if(flag==1) //shifts c bits to right
result=num>>c;
printf("Result in Decimmal: %d",result);
to_binary(result);
return 0;
}
void to_binary(unsigned int num)
{
int bNum[32];
int i = 0;
while (num > 0)
{
bNum[i] = num%2;
num = num/2;
i++;
}
printf("\nResult in Binary:");
for (int j = i - 1; j >= 0; j--)
printf("%d",bNum[j]);
}

2 3 4 #include <stdio.h> void to_binary (unsigned int num); int main(void) { unsigned int num, result; int c, flag; printf("Enter a number in range 0 to 65535:"); scanf("%d",&num); printf("Input number of bits to shift: "); scanf("%d",&c); printf("Shift to left (enter ) or right (enter 1): "); scanf("%d",&flag); if(flag==0) //shifts c bits to Left result=num<<c; if(flag==1) //shifts c bits to right result=num>>C; printf("Result in Decimmal: %d", result); to_binary(result); return ; void to_binary (unsigned int num) int bNum[32]; int i = ; while (num > 0) bNum[i] = num % 2; num = num/2; i++; printf("\nResult in Binary:"); for (int j = i - 1; i >= 0; i--) printf("%d", bNum[j]); 33 }

Outputs:

clang version 7.0.0-3-ubuntu0.18.04.1 (tags/RELEASE 700/f ? clang-7 -pthread -im -o main main.c } ./main Enter a number in range 0 to 65535:19 Input number of bits to shift:1 Shift to left (enter O) or right (enter 1):1 Result in Decimmal: 9 Result in Binary:1001)

clang version 7.0.0-3-ubuntuo.18.04.1 (tags/RELEASE_700/f } clang-7 pthread -lm -o main main.c } ./main Enter a number in range 0 to 65535:19 Input number of bits to shift:1 Shift to left (enter O) or right (enter 1) :0 Result in Decimmal: 38 Result in Binary: 100110